I'm currently working on a mixed integer linear program in which I have binary and NonNegativeReal variables. Is it possible to obtain its dual variables? I am asking this because
when I try to get some specific dual variable associated to a constraint, I get an error message such as:
KeyError: "Component with id '1595808824672': Lower_W[HYDRO_RES,1]"
And when using instance.dual.display() I get the following message:
dual : Direction=Suffix.IMPORT_EXPORT, Datatype=None
Key : Value
Also the motive of this question is because I ve seen the following discussion at StackOverflow:
Could someone confirm if this is true?
In case it is not, I am sharing my code of my GitHub repository: